<?php
/**
 * Romanization lookup table
 *
 * This lookup tables provides a way to transform strings written in a language
 * different from the ones based upon latin letters into plain ASCII.
 *
 * Please note: this is not a scientific transliteration table. It only works
 * oneway from nonlatin to ASCII and it works by simple character replacement
 * only. Specialities of each language are not supported.
 *
 * @todo some keys are used multiple times
 * @todo remove or integrate commented pairs
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @author Vitaly Blokhin <vitinfo@vitn.com>
 * @author Bisqwit <bisqwit@iki.fi>
 * @author Arthit Suriyawongkul <arthit@gmail.com>
 * @author Denis Scheither <amorphis@uni-bremen.de>
 * @author Eivind Morland <eivind.morland@gmail.com>
 * @link   http://www.uconv.com/translit.htm
 * @link   http://kanjidict.stc.cx/hiragana.php?src=2
 * @link   http://www.translatum.gr/converter/greek-transliteration.htm
 * @link   http://en.wikipedia.org/wiki/Royal_Thai_General_System_of_Transcription
 * @link   http://www.btranslations.com/resources/romanization/korean.asp
 */
return [
    // scandinavian - differs from what we do in deaccent
    'å' => 'a',
    'Å' => 'A',
    'ä' => 'a',
    'Ä' => 'A',
    'ö' => 'o',
    'Ö' => 'O',

    //russian cyrillic
    'а' => 'a',
    'А' => 'A',
    'б' => 'b',
    'Б' => 'B',
    'в' => 'v',
    'В' => 'V',
    'г' => 'g',
    'Г' => 'G',
    'д' => 'd',
    'Д' => 'D',
    'е' => 'e',
    'Е' => 'E',
    'ё' => 'jo',
    'Ё' => 'Jo',
    'ж' => 'zh',
    'Ж' => 'Zh',
    'з' => 'z',
    'З' => 'Z',
    'и' => 'i',
    'И' => 'I',
    'й' => 'j',
    'Й' => 'J',
    'к' => 'k',
    'К' => 'K',
    'л' => 'l',
    'Л' => 'L',
    'м' => 'm',
    'М' => 'M',
    'н' => 'n',
    'Н' => 'N',
    'о' => 'o',
    'О' => 'O',
    'п' => 'p',
    'П' => 'P',
    'р' => 'r',
    'Р' => 'R',
    'с' => 's',
    'С' => 'S',
    'т' => 't',
    'Т' => 'T',
    'у' => 'u',
    'У' => 'U',
    'ф' => 'f',
    'Ф' => 'F',
    'х' => 'x',
    'Х' => 'X',
    'ц' => 'c',
    'Ц' => 'C',
    'ч' => 'ch',
    'Ч' => 'Ch',
    'ш' => 'sh',
    'Ш' => 'Sh',
    'щ' => 'sch',
    'Щ' => 'Sch',
    'ъ' => '',
    'Ъ' => '',
    'ы' => 'y',
    'Ы' => 'Y',
    'ь' => '',
    'Ь' => '',
    'э' => 'eh',
    'Э' => 'Eh',
    'ю' => 'ju',
    'Ю' => 'Ju',
    'я' => 'ja',
    'Я' => 'Ja',

    // Ukrainian cyrillic
    'Ґ' => 'Gh',
    'ґ' => 'gh',
    'Є' => 'Je',
    'є' => 'je',
    'І' => 'I',
    'і' => 'i',
    'Ї' => 'Ji',
    'ї' => 'ji',

    // Georgian
    'ა' => 'a',
    'ბ' => 'b',
    'გ' => 'g',
    'დ' => 'd',
    'ე' => 'e',
    'ვ' => 'v',
    'ზ' => 'z',
    'თ' => 'th',
    'ი' => 'i',
    'კ' => 'p',
    'ლ' => 'l',
    'მ' => 'm',
    'ნ' => 'n',
    'ო' => 'o',
    'პ' => 'p',
    'ჟ' => 'zh',
    'რ' => 'r',
    'ს' => 's',
    'ტ' => 't',
    'უ' => 'u',
    'ფ' => 'ph',
    'ქ' => 'kh',
    'ღ' => 'gh',
    'ყ' => 'q',
    'შ' => 'sh',
    'ჩ' => 'ch',
    'ც' => 'c',
    'ძ' => 'dh',
    'წ' => 'w',
    'ჭ' => 'j',
    'ხ' => 'x',
    'ჯ' => 'jh',
    'ჰ' => 'xh',

    //Sanskrit
    'अ' => 'a',
    'आ' => 'ah',
    'इ' => 'i',
    'ई' => 'ih',
    'उ' => 'u',
    'ऊ' => 'uh',
    'ऋ' => 'ry',
    'ॠ' => 'ryh',
    'ऌ' => 'ly',
    'ॡ' => 'lyh',
    'ए' => 'e',
    'ऐ' => 'ay',
    'ओ' => 'o',
    'औ' => 'aw',
    'अं' => 'amh',
    'अः' => 'aq',
    'क' => 'k',
    'ख' => 'kh',
    'ग' => 'g',
    'घ' => 'gh',
    'ङ' => 'nh',
    'च' => 'c',
    'छ' => 'ch',
    'ज' => 'j',
    'झ' => 'jh',
    'ञ' => 'ny',
    'ट' => 'tq',
    'ठ' => 'tqh',
    'ड' => 'dq',
    'ढ' => 'dqh',
    'ण' => 'nq',
    'त' => 't',
    'थ' => 'th',
    'द' => 'd',
    'ध' => 'dh',
    'न' => 'n',
    'प' => 'p',
    'फ' => 'ph',
    'ब' => 'b',
    'भ' => 'bh',
    'म' => 'm',
    'य' => 'z',
    'र' => 'r',
    'ल' => 'l',
    'व' => 'v',
    'श' => 'sh',
    'ष' => 'sqh',
    'स' => 's',
    'ह' => 'x',

    //Sanskrit diacritics
    'Ā' => 'A',
    'Ī' => 'I',
    'Ū' => 'U',
    'Ṛ' => 'R',
    'Ṝ' => 'R',
    'Ṅ' => 'N',
    'Ñ' => 'N',
    'Ṭ' => 'T',
    'Ḍ' => 'D',
    'Ṇ' => 'N',
    'Ś' => 'S',
    'Ṣ' => 'S',
    'Ṁ' => 'M',
    'Ṃ' => 'M',
    'Ḥ' => 'H',
    'Ḷ' => 'L',
    'Ḹ' => 'L',
    'ā' => 'a',
    'ī' => 'i',
    'ū' => 'u',
    'ṛ' => 'r',
    'ṝ' => 'r',
    'ṅ' => 'n',
    'ñ' => 'n',
    'ṭ' => 't',
    'ḍ' => 'd',
    'ṇ' => 'n',
    'ś' => 's',
    'ṣ' => 's',
    'ṁ' => 'm',
    'ṃ' => 'm',
    'ḥ' => 'h',
    'ḷ' => 'l',
    'ḹ' => 'l',

    //Hebrew
    'א' => 'a',
    'ב' => 'b',
    'ג' => 'g',
    'ד' => 'd',
    'ה' => 'h',
    'ו' => 'v',
    'ז' => 'z',
    'ח' => 'kh',
    'ט' => 'th',
    'י' => 'y',
    'ך' => 'h',
    'כ' => 'k',
    'ל' => 'l',
    'ם' => 'm',
    'מ' => 'm',
    'ן' => 'n',
    'נ' => 'n',
    'ס' => 's',
    'ע' => 'ah',
    'ף' => 'f',
    'פ' => 'p',
    'ץ' => 'c',
    'צ' => 'c',
    'ק' => 'q',
    'ר' => 'r',
    'ש' => 'sh',
    'ת' => 't',

    //Arabic
    'ا' => 'a',
    'ب' => 'b',
    'ت' => 't',
    'ث' => 'th',
    'ج' => 'g',
    'ح' => 'xh',
    'خ' => 'x',
    'د' => 'd',
    'ذ' => 'dh',
    'ر' => 'r',
    'ز' => 'z',
    'س' => 's',
    'ش' => 'sh',
    'ص' => 's\'',
    'ض' => 'd\'',
    'ط' => 't\'',
    'ظ' => 'z\'',
    'ع' => 'y',
    'غ' => 'gh',
    'ف' => 'f',
    'ق' => 'q',
    'ك' => 'k',
    'ل' => 'l',
    'م' => 'm',
    'ن' => 'n',
    'ه' => 'x\'',
    'و' => 'u',
    'ي' => 'i',

    // Japanese characters  (last update: 2008-05-09)

    // Japanese hiragana

    // 3 character syllables, っ doubles the consonant after
    'っちゃ' => 'ccha',
    'っちぇ' => 'cche',
    'っちょ' => 'ccho',
    'っちゅ' => 'cchu',
    'っびゃ' => 'bbya',
    'っびぇ' => 'bbye',
    'っびぃ' => 'bbyi',
    'っびょ' => 'bbyo',
    'っびゅ' => 'bbyu',
    'っぴゃ' => 'ppya',
    'っぴぇ' => 'ppye',
    'っぴぃ' => 'ppyi',
    'っぴょ' => 'ppyo',
    'っぴゅ' => 'ppyu',
    'っちゃ' => 'ccha',
    'っちぇ' => 'cche',
    'っち' => 'cchi',
    'っちょ' => 'ccho',
    'っちゅ' => 'cchu',
    // 'っひゃ'=>'hya',
    // 'っひぇ'=>'hye',
    // 'っひぃ'=>'hyi',
    // 'っひょ'=>'hyo',
    // 'っひゅ'=>'hyu',
    'っきゃ' => 'kkya',
    'っきぇ' => 'kkye',
    'っきぃ' => 'kkyi',
    'っきょ' => 'kkyo',
    'っきゅ' => 'kkyu',
    'っぎゃ' => 'ggya',
    'っぎぇ' => 'ggye',
    'っぎぃ' => 'ggyi',
    'っぎょ' => 'ggyo',
    'っぎゅ' => 'ggyu',
    'っみゃ' => 'mmya',
    'っみぇ' => 'mmye',
    'っみぃ' => 'mmyi',
    'っみょ' => 'mmyo',
    'っみゅ' => 'mmyu',
    'っにゃ' => 'nnya',
    'っにぇ' => 'nnye',
    'っにぃ' => 'nnyi',
    'っにょ' => 'nnyo',
    'っにゅ' => 'nnyu',
    'っりゃ' => 'rrya',
    'っりぇ' => 'rrye',
    'っりぃ' => 'rryi',
    'っりょ' => 'rryo',
    'っりゅ' => 'rryu',
    'っしゃ' => 'ssha',
    'っしぇ' => 'sshe',
    'っし' => 'sshi',
    'っしょ' => 'ssho',
    'っしゅ' => 'sshu',

    // seperate hiragana 'n' ('n' + 'i' != 'ni', normally we would write "kon'nichi wa" but the
    // apostrophe would be converted to _ anyway)
    'んあ' => 'n_a',
    'んえ' => 'n_e',
    'んい' => 'n_i',
    'んお' => 'n_o',
    'んう' => 'n_u',
    'んや' => 'n_ya',
    'んよ' => 'n_yo',
    'んゆ' => 'n_yu',

    // 2 character syllables - normal
    'ふぁ' => 'fa',
    'ふぇ' => 'fe',
    'ふぃ' => 'fi',
    'ふぉ' => 'fo',
    'ちゃ' => 'cha',
    'ちぇ' => 'che',
    'ち' => 'chi',
    'ちょ' => 'cho',
    'ちゅ' => 'chu',
    'ひゃ' => 'hya',
    'ひぇ' => 'hye',
    'ひぃ' => 'hyi',
    'ひょ' => 'hyo',
    'ひゅ' => 'hyu',
    'びゃ' => 'bya',
    'びぇ' => 'bye',
    'びぃ' => 'byi',
    'びょ' => 'byo',
    'びゅ' => 'byu',
    'ぴゃ' => 'pya',
    'ぴぇ' => 'pye',
    'ぴぃ' => 'pyi',
    'ぴょ' => 'pyo',
    'ぴゅ' => 'pyu',
    'きゃ' => 'kya',
    'きぇ' => 'kye',
    'きぃ' => 'kyi',
    'きょ' => 'kyo',
    'きゅ' => 'kyu',
    'ぎゃ' => 'gya',
    'ぎぇ' => 'gye',
    'ぎぃ' => 'gyi',
    'ぎょ' => 'gyo',
    'ぎゅ' => 'gyu',
    'みゃ' => 'mya',
    'みぇ' => 'mye',
    'みぃ' => 'myi',
    'みょ' => 'myo',
    'みゅ' => 'myu',
    'にゃ' => 'nya',
    'にぇ' => 'nye',
    'にぃ' => 'nyi',
    'にょ' => 'nyo',
    'にゅ' => 'nyu',
    'りゃ' => 'rya',
    'りぇ' => 'rye',
    'りぃ' => 'ryi',
    'りょ' => 'ryo',
    'りゅ' => 'ryu',
    'しゃ' => 'sha',
    'しぇ' => 'she',
    'し' => 'shi',
    'しょ' => 'sho',
    'しゅ' => 'shu',
    'じゃ' => 'ja',
    'じぇ' => 'je',
    'じょ' => 'jo',
    'じゅ' => 'ju',
    'うぇ' => 'we',
    'うぃ' => 'wi',
    'いぇ' => 'ye',

    // 2 character syllables, っ doubles the consonant after
    'っば' => 'bba',
    'っべ' => 'bbe',
    'っび' => 'bbi',
    'っぼ' => 'bbo',
    'っぶ' => 'bbu',
    'っぱ' => 'ppa',
    'っぺ' => 'ppe',
    'っぴ' => 'ppi',
    'っぽ' => 'ppo',
    'っぷ' => 'ppu',
    'った' => 'tta',
    'って' => 'tte',
    'っち' => 'cchi',
    'っと' => 'tto',
    'っつ' => 'ttsu',
    'っだ' => 'dda',
    'っで' => 'dde',
    'っぢ' => 'ddi',
    'っど' => 'ddo',
    'っづ' => 'ddu',
    'っが' => 'gga',
    'っげ' => 'gge',
    'っぎ' => 'ggi',
    'っご' => 'ggo',
    'っぐ' => 'ggu',
    'っか' => 'kka',
    'っけ' => 'kke',
    'っき' => 'kki',
    'っこ' => 'kko',
    'っく' => 'kku',
    'っま' => 'mma',
    'っめ' => 'mme',
    'っみ' => 'mmi',
    'っも' => 'mmo',
    'っむ' => 'mmu',
    'っな' => 'nna',
    'っね' => 'nne',
    'っに' => 'nni',
    'っの' => 'nno',
    'っぬ' => 'nnu',
    'っら' => 'rra',
    'っれ' => 'rre',
    'っり' => 'rri',
    'っろ' => 'rro',
    'っる' => 'rru',
    'っさ' => 'ssa',
    'っせ' => 'sse',
    'っし' => 'sshi',
    'っそ' => 'sso',
    'っす' => 'ssu',
    'っざ' => 'zza',
    'っぜ' => 'zze',
    'っじ' => 'jji',
    'っぞ' => 'zzo',
    'っず' => 'zzu',

    // 1 character syllabels
    'あ' => 'a',
    'え' => 'e',
    'い' => 'i',
    'お' => 'o',
    'う' => 'u',
    'ん' => 'n',
    'は' => 'ha',
    'へ' => 'he',
    'ひ' => 'hi',
    'ほ' => 'ho',
    'ふ' => 'fu',
    'ば' => 'ba',
    'べ' => 'be',
    'び' => 'bi',
    'ぼ' => 'bo',
    'ぶ' => 'bu',
    'ぱ' => 'pa',
    'ぺ' => 'pe',
    'ぴ' => 'pi',
    'ぽ' => 'po',
    'ぷ' => 'pu',
    'た' => 'ta',
    'て' => 'te',
    'ち' => 'chi',
    'と' => 'to',
    'つ' => 'tsu',
    'だ' => 'da',
    'で' => 'de',
    'ぢ' => 'di',
    'ど' => 'do',
    'づ' => 'du',
    'が' => 'ga',
    'げ' => 'ge',
    'ぎ' => 'gi',
    'ご' => 'go',
    'ぐ' => 'gu',
    'か' => 'ka',
    'け' => 'ke',
    'き' => 'ki',
    'こ' => 'ko',
    'く' => 'ku',
    'ま' => 'ma',
    'め' => 'me',
    'み' => 'mi',
    'も' => 'mo',
    'む' => 'mu',
    'な' => 'na',
    'ね' => 'ne',
    'に' => 'ni',
    'の' => 'no',
    'ぬ' => 'nu',
    'ら' => 'ra',
    'れ' => 're',
    'り' => 'ri',
    'ろ' => 'ro',
    'る' => 'ru',
    'さ' => 'sa',
    'せ' => 'se',
    'し' => 'shi',
    'そ' => 'so',
    'す' => 'su',
    'わ' => 'wa',
    'を' => 'wo',
    'ざ' => 'za',
    'ぜ' => 'ze',
    'じ' => 'ji',
    'ぞ' => 'zo',
    'ず' => 'zu',
    'や' => 'ya',
    'よ' => 'yo',
    'ゆ' => 'yu',
    // old characters
    'ゑ' => 'we',
    'ゐ' => 'wi',

    //  convert what's left (probably only kicks in when something's missing above)
    // 'ぁ'=>'a','ぇ'=>'e','ぃ'=>'i','ぉ'=>'o','ぅ'=>'u',
    // 'ゃ'=>'ya','ょ'=>'yo','ゅ'=>'yu',

    // never seen one of those (disabled for the moment)
    // 'ヴぁ'=>'va','ヴぇ'=>'ve','ヴぃ'=>'vi','ヴぉ'=>'vo','ヴ'=>'vu',
    // 'でゃ'=>'dha','でぇ'=>'dhe','でぃ'=>'dhi','でょ'=>'dho','でゅ'=>'dhu',
    // 'どぁ'=>'dwa','どぇ'=>'dwe','どぃ'=>'dwi','どぉ'=>'dwo','どぅ'=>'dwu',
    // 'ぢゃ'=>'dya','ぢぇ'=>'dye','ぢぃ'=>'dyi','ぢょ'=>'dyo','ぢゅ'=>'dyu',
    // 'ふぁ'=>'fwa','ふぇ'=>'fwe','ふぃ'=>'fwi','ふぉ'=>'fwo','ふぅ'=>'fwu',
    // 'ふゃ'=>'fya','ふぇ'=>'fye','ふぃ'=>'fyi','ふょ'=>'fyo','ふゅ'=>'fyu',
    // 'すぁ'=>'swa','すぇ'=>'swe','すぃ'=>'swi','すぉ'=>'swo','すぅ'=>'swu',
    // 'てゃ'=>'tha','てぇ'=>'the','てぃ'=>'thi','てょ'=>'tho','てゅ'=>'thu',
    // 'つゃ'=>'tsa','つぇ'=>'tse','つぃ'=>'tsi','つょ'=>'tso','つ'=>'tsu',
    // 'とぁ'=>'twa','とぇ'=>'twe','とぃ'=>'twi','とぉ'=>'two','とぅ'=>'twu',
    // 'ヴゃ'=>'vya','ヴぇ'=>'vye','ヴぃ'=>'vyi','ヴょ'=>'vyo','ヴゅ'=>'vyu',
    // 'うぁ'=>'wha','うぇ'=>'whe','うぃ'=>'whi','うぉ'=>'who','うぅ'=>'whu',
    // 'じゃ'=>'zha','じぇ'=>'zhe','じぃ'=>'zhi','じょ'=>'zho','じゅ'=>'zhu',
    // 'じゃ'=>'zya','じぇ'=>'zye','じぃ'=>'zyi','じょ'=>'zyo','じゅ'=>'zyu',

    // 'spare' characters from other romanization systems
    // 'だ'=>'da','で'=>'de','ぢ'=>'di','ど'=>'do','づ'=>'du',
    // 'ら'=>'la','れ'=>'le','り'=>'li','ろ'=>'lo','る'=>'lu',
    // 'さ'=>'sa','せ'=>'se','し'=>'si','そ'=>'so','す'=>'su',
    // 'ちゃ'=>'cya','ちぇ'=>'cye','ちぃ'=>'cyi','ちょ'=>'cyo','ちゅ'=>'cyu',
    //'じゃ'=>'jya','じぇ'=>'jye','じぃ'=>'jyi','じょ'=>'jyo','じゅ'=>'jyu',
    //'りゃ'=>'lya','りぇ'=>'lye','りぃ'=>'lyi','りょ'=>'lyo','りゅ'=>'lyu',
    //'しゃ'=>'sya','しぇ'=>'sye','しぃ'=>'syi','しょ'=>'syo','しゅ'=>'syu',
    //'ちゃ'=>'tya','ちぇ'=>'tye','ちぃ'=>'tyi','ちょ'=>'tyo','ちゅ'=>'tyu',
    //'し'=>'ci',,い'=>'yi','ぢ'=>'dzi',
    //'っじゃ'=>'jja','っじぇ'=>'jje','っじ'=>'jji','っじょ'=>'jjo','っじゅ'=>'jju',


    // Japanese katakana

    // 4 character syllables: ッ doubles the consonant after, ー doubles the vowel before
    // (usualy written with macron, but we don't want that in our URLs)
    'ッビャー' => 'bbyaa',
    'ッビェー' => 'bbyee',
    'ッビィー' => 'bbyii',
    'ッビョー' => 'bbyoo',
    'ッビュー' => 'bbyuu',
    'ッピャー' => 'ppyaa',
    'ッピェー' => 'ppyee',
    'ッピィー' => 'ppyii',
    'ッピョー' => 'ppyoo',
    'ッピュー' => 'ppyuu',
    'ッキャー' => 'kkyaa',
    'ッキェー' => 'kkyee',
    'ッキィー' => 'kkyii',
    'ッキョー' => 'kkyoo',
    'ッキュー' => 'kkyuu',
    'ッギャー' => 'ggyaa',
    'ッギェー' => 'ggyee',
    'ッギィー' => 'ggyii',
    'ッギョー' => 'ggyoo',
    'ッギュー' => 'ggyuu',
    'ッミャー' => 'mmyaa',
    'ッミェー' => 'mmyee',
    'ッミィー' => 'mmyii',
    'ッミョー' => 'mmyoo',
    'ッミュー' => 'mmyuu',
    'ッニャー' => 'nnyaa',
    'ッニェー' => 'nnyee',
    'ッニィー' => 'nnyii',
    'ッニョー' => 'nnyoo',
    'ッニュー' => 'nnyuu',
    'ッリャー' => 'rryaa',
    'ッリェー' => 'rryee',
    'ッリィー' => 'rryii',
    'ッリョー' => 'rryoo',
    'ッリュー' => 'rryuu',
    'ッシャー' => 'sshaa',
    'ッシェー' => 'sshee',
    'ッシー' => 'sshii',
    'ッショー' => 'sshoo',
    'ッシュー' => 'sshuu',
    'ッチャー' => 'cchaa',
    'ッチェー' => 'cchee',
    'ッチー' => 'cchii',
    'ッチョー' => 'cchoo',
    'ッチュー' => 'cchuu',
    'ッティー' => 'ttii',
    'ッヂィー' => 'ddii',

    // 3 character syllables - doubled vowels
    'ファー' => 'faa',
    'フェー' => 'fee',
    'フィー' => 'fii',
    'フォー' => 'foo',
    'フャー' => 'fyaa',
    'フェー' => 'fyee',
    'フィー' => 'fyii',
    'フョー' => 'fyoo',
    'フュー' => 'fyuu',
    'ヒャー' => 'hyaa',
    'ヒェー' => 'hyee',
    'ヒィー' => 'hyii',
    'ヒョー' => 'hyoo',
    'ヒュー' => 'hyuu',
    'ビャー' => 'byaa',
    'ビェー' => 'byee',
    'ビィー' => 'byii',
    'ビョー' => 'byoo',
    'ビュー' => 'byuu',
    'ピャー' => 'pyaa',
    'ピェー' => 'pyee',
    'ピィー' => 'pyii',
    'ピョー' => 'pyoo',
    'ピュー' => 'pyuu',
    'キャー' => 'kyaa',
    'キェー' => 'kyee',
    'キィー' => 'kyii',
    'キョー' => 'kyoo',
    'キュー' => 'kyuu',
    'ギャー' => 'gyaa',
    'ギェー' => 'gyee',
    'ギィー' => 'gyii',
    'ギョー' => 'gyoo',
    'ギュー' => 'gyuu',
    'ミャー' => 'myaa',
    'ミェー' => 'myee',
    'ミィー' => 'myii',
    'ミョー' => 'myoo',
    'ミュー' => 'myuu',
    'ニャー' => 'nyaa',
    'ニェー' => 'nyee',
    'ニィー' => 'nyii',
    'ニョー' => 'nyoo',
    'ニュー' => 'nyuu',
    'リャー' => 'ryaa',
    'リェー' => 'ryee',
    'リィー' => 'ryii',
    'リョー' => 'ryoo',
    'リュー' => 'ryuu',
    'シャー' => 'shaa',
    'シェー' => 'shee',
    'シー' => 'shii',
    'ショー' => 'shoo',
    'シュー' => 'shuu',
    'ジャー' => 'jaa',
    'ジェー' => 'jee',
    'ジー' => 'jii',
    'ジョー' => 'joo',
    'ジュー' => 'juu',
    'スァー' => 'swaa',
    'スェー' => 'swee',
    'スィー' => 'swii',
    'スォー' => 'swoo',
    'スゥー' => 'swuu',
    'デァー' => 'daa',
    'デェー' => 'dee',
    'ディー' => 'dii',
    'デォー' => 'doo',
    'デゥー' => 'duu',
    'チャー' => 'chaa',
    'チェー' => 'chee',
    'チー' => 'chii',
    'チョー' => 'choo',
    'チュー' => 'chuu',
    'ヂャー' => 'dyaa',
    'ヂェー' => 'dyee',
    'ヂィー' => 'dyii',
    'ヂョー' => 'dyoo',
    'ヂュー' => 'dyuu',
    'ツャー' => 'tsaa',
    'ツェー' => 'tsee',
    'ツィー' => 'tsii',
    'ツョー' => 'tsoo',
    'ツー' => 'tsuu',
    'トァー' => 'twaa',
    'トェー' => 'twee',
    'トィー' => 'twii',
    'トォー' => 'twoo',
    'トゥー' => 'twuu',
    'ドァー' => 'dwaa',
    'ドェー' => 'dwee',
    'ドィー' => 'dwii',
    'ドォー' => 'dwoo',
    'ドゥー' => 'dwuu',
    'ウァー' => 'whaa',
    'ウェー' => 'whee',
    'ウィー' => 'whii',
    'ウォー' => 'whoo',
    'ウゥー' => 'whuu',
    'ヴャー' => 'vyaa',
    'ヴェー' => 'vyee',
    'ヴィー' => 'vyii',
    'ヴョー' => 'vyoo',
    'ヴュー' => 'vyuu',
    'ヴァー' => 'vaa',
    'ヴェー' => 'vee',
    'ヴィー' => 'vii',
    'ヴォー' => 'voo',
    'ヴー' => 'vuu',
    'ウェー' => 'wee',
    'ウィー' => 'wii',
    'イェー' => 'yee',
    'ティー' => 'tii',
    'ヂィー' => 'dii',

    // 3 character syllables - doubled consonants
    'ッビャ' => 'bbya',
    'ッビェ' => 'bbye',
    'ッビィ' => 'bbyi',
    'ッビョ' => 'bbyo',
    'ッビュ' => 'bbyu',
    'ッピャ' => 'ppya',
    'ッピェ' => 'ppye',
    'ッピィ' => 'ppyi',
    'ッピョ' => 'ppyo',
    'ッピュ' => 'ppyu',
    'ッキャ' => 'kkya',
    'ッキェ' => 'kkye',
    'ッキィ' => 'kkyi',
    'ッキョ' => 'kkyo',
    'ッキュ' => 'kkyu',
    'ッギャ' => 'ggya',
    'ッギェ' => 'ggye',
    'ッギィ' => 'ggyi',
    'ッギョ' => 'ggyo',
    'ッギュ' => 'ggyu',
    'ッミャ' => 'mmya',
    'ッミェ' => 'mmye',
    'ッミィ' => 'mmyi',
    'ッミョ' => 'mmyo',
    'ッミュ' => 'mmyu',
    'ッニャ' => 'nnya',
    'ッニェ' => 'nnye',
    'ッニィ' => 'nnyi',
    'ッニョ' => 'nnyo',
    'ッニュ' => 'nnyu',
    'ッリャ' => 'rrya',
    'ッリェ' => 'rrye',
    'ッリィ' => 'rryi',
    'ッリョ' => 'rryo',
    'ッリュ' => 'rryu',
    'ッシャ' => 'ssha',
    'ッシェ' => 'sshe',
    'ッシ' => 'sshi',
    'ッショ' => 'ssho',
    'ッシュ' => 'sshu',
    'ッチャ' => 'ccha',
    'ッチェ' => 'cche',
    'ッチ' => 'cchi',
    'ッチョ' => 'ccho',
    'ッチュ' => 'cchu',
    'ッティ' => 'tti',
    'ッヂィ' => 'ddi',

    // 3 character syllables - doubled vowel and consonants
    'ッバー' => 'bbaa',
    'ッベー' => 'bbee',
    'ッビー' => 'bbii',
    'ッボー' => 'bboo',
    'ッブー' => 'bbuu',
    'ッパー' => 'ppaa',
    'ッペー' => 'ppee',
    'ッピー' => 'ppii',
    'ッポー' => 'ppoo',
    'ップー' => 'ppuu',
    'ッケー' => 'kkee',
    'ッキー' => 'kkii',
    'ッコー' => 'kkoo',
    'ックー' => 'kkuu',
    'ッカー' => 'kkaa',
    'ッガー' => 'ggaa',
    'ッゲー' => 'ggee',
    'ッギー' => 'ggii',
    'ッゴー' => 'ggoo',
    'ッグー' => 'gguu',
    'ッマー' => 'maa',
    'ッメー' => 'mee',
    'ッミー' => 'mii',
    'ッモー' => 'moo',
    'ッムー' => 'muu',
    'ッナー' => 'nnaa',
    'ッネー' => 'nnee',
    'ッニー' => 'nnii',
    'ッノー' => 'nnoo',
    'ッヌー' => 'nnuu',
    'ッラー' => 'rraa',
    'ッレー' => 'rree',
    'ッリー' => 'rrii',
    'ッロー' => 'rroo',
    'ッルー' => 'rruu',
    'ッサー' => 'ssaa',
    'ッセー' => 'ssee',
    'ッシー' => 'sshii',
    'ッソー' => 'ssoo',
    'ッスー' => 'ssuu',
    'ッザー' => 'zzaa',
    'ッゼー' => 'zzee',
    'ッジー' => 'jjii',
    'ッゾー' => 'zzoo',
    'ッズー' => 'zzuu',
    'ッター' => 'ttaa',
    'ッテー' => 'ttee',
    'ッチー' => 'chii',
    'ットー' => 'ttoo',
    'ッツー' => 'ttsuu',
    'ッダー' => 'ddaa',
    'ッデー' => 'ddee',
    'ッヂー' => 'ddii',
    'ッドー' => 'ddoo',
    'ッヅー' => 'dduu',

    // 2 character syllables - normal
    'ファ' => 'fa',
    'フェ' => 'fe',
    'フィ' => 'fi',
    'フォ' => 'fo',
    'フゥ' => 'fu',
    // 'フャ'=>'fya',
    // 'フェ'=>'fye',
    // 'フィ'=>'fyi',
    // 'フョ'=>'fyo',
    // 'フュ'=>'fyu',
    'フャ' => 'fa',
    'フェ' => 'fe',
    'フィ' => 'fi',
    'フョ' => 'fo',
    'フュ' => 'fu',
    'ヒャ' => 'hya',
    'ヒェ' => 'hye',
    'ヒィ' => 'hyi',
    'ヒョ' => 'hyo',
    'ヒュ' => 'hyu',
    'ビャ' => 'bya',
    'ビェ' => 'bye',
    'ビィ' => 'byi',
    'ビョ' => 'byo',
    'ビュ' => 'byu',
    'ピャ' => 'pya',
    'ピェ' => 'pye',
    'ピィ' => 'pyi',
    'ピョ' => 'pyo',
    'ピュ' => 'pyu',
    'キャ' => 'kya',
    'キェ' => 'kye',
    'キィ' => 'kyi',
    'キョ' => 'kyo',
    'キュ' => 'kyu',
    'ギャ' => 'gya',
    'ギェ' => 'gye',
    'ギィ' => 'gyi',
    'ギョ' => 'gyo',
    'ギュ' => 'gyu',
    'ミャ' => 'mya',
    'ミェ' => 'mye',
    'ミィ' => 'myi',
    'ミョ' => 'myo',
    'ミュ' => 'myu',
    'ニャ' => 'nya',
    'ニェ' => 'nye',
    'ニィ' => 'nyi',
    'ニョ' => 'nyo',
    'ニュ' => 'nyu',
    'リャ' => 'rya',
    'リェ' => 'rye',
    'リィ' => 'ryi',
    'リョ' => 'ryo',
    'リュ' => 'ryu',
    'シャ' => 'sha',
    'シェ' => 'she',
    'ショ' => 'sho',
    'シュ' => 'shu',
    'ジャ' => 'ja',
    'ジェ' => 'je',
    'ジョ' => 'jo',
    'ジュ' => 'ju',
    'スァ' => 'swa',
    'スェ' => 'swe',
    'スィ' => 'swi',
    'スォ' => 'swo',
    'スゥ' => 'swu',
    'デァ' => 'da',
    'デェ' => 'de',
    'ディ' => 'di',
    'デォ' => 'do',
    'デゥ' => 'du',
    'チャ' => 'cha',
    'チェ' => 'che',
    'チ' => 'chi',
    'チョ' => 'cho',
    'チュ' => 'chu',
    // 'ヂャ'=>'dya',
    // 'ヂェ'=>'dye',
    // 'ヂィ'=>'dyi',
    // 'ヂョ'=>'dyo',
    // 'ヂュ'=>'dyu',
    'ツャ' => 'tsa',
    'ツェ' => 'tse',
    'ツィ' => 'tsi',
    'ツョ' => 'tso',
    'ツ' => 'tsu',
    'トァ' => 'twa',
    'トェ' => 'twe',
    'トィ' => 'twi',
    'トォ' => 'two',
    'トゥ' => 'twu',
    'ドァ' => 'dwa',
    'ドェ' => 'dwe',
    'ドィ' => 'dwi',
    'ドォ' => 'dwo',
    'ドゥ' => 'dwu',
    'ウァ' => 'wha',
    'ウェ' => 'whe',
    'ウィ' => 'whi',
    'ウォ' => 'who',
    'ウゥ' => 'whu',
    'ヴャ' => 'vya',
    'ヴェ' => 'vye',
    'ヴィ' => 'vyi',
    'ヴョ' => 'vyo',
    'ヴュ' => 'vyu',
    'ヴァ' => 'va',
    'ヴェ' => 've',
    'ヴィ' => 'vi',
    'ヴォ' => 'vo',
    'ヴ' => 'vu',
    'ウェ' => 'we',
    'ウィ' => 'wi',
    'イェ' => 'ye',
    'ティ' => 'ti',
    'ヂィ' => 'di',

    // 2 character syllables - doubled vocal
    'アー' => 'aa',
    'エー' => 'ee',
    'イー' => 'ii',
    'オー' => 'oo',
    'ウー' => 'uu',
    'ダー' => 'daa',
    'デー' => 'dee',
    'ヂー' => 'dii',
    'ドー' => 'doo',
    'ヅー' => 'duu',
    'ハー' => 'haa',
    'ヘー' => 'hee',
    'ヒー' => 'hii',
    'ホー' => 'hoo',
    'フー' => 'fuu',
    'バー' => 'baa',
    'ベー' => 'bee',
    'ビー' => 'bii',
    'ボー' => 'boo',
    'ブー' => 'buu',
    'パー' => 'paa',
    'ペー' => 'pee',
    'ピー' => 'pii',
    'ポー' => 'poo',
    'プー' => 'puu',
    'ケー' => 'kee',
    'キー' => 'kii',
    'コー' => 'koo',
    'クー' => 'kuu',
    'カー' => 'kaa',
    'ガー' => 'gaa',
    'ゲー' => 'gee',
    'ギー' => 'gii',
    'ゴー' => 'goo',
    'グー' => 'guu',
    'マー' => 'maa',
    'メー' => 'mee',
    'ミー' => 'mii',
    'モー' => 'moo',
    'ムー' => 'muu',
    'ナー' => 'naa',
    'ネー' => 'nee',
    'ニー' => 'nii',
    'ノー' => 'noo',
    'ヌー' => 'nuu',
    'ラー' => 'raa',
    'レー' => 'ree',
    'リー' => 'rii',
    'ロー' => 'roo',
    'ルー' => 'ruu',
    'サー' => 'saa',
    'セー' => 'see',
    'シー' => 'shii',
    'ソー' => 'soo',
    'スー' => 'suu',
    'ザー' => 'zaa',
    'ゼー' => 'zee',
    'ジー' => 'jii',
    'ゾー' => 'zoo',
    'ズー' => 'zuu',
    'ター' => 'taa',
    'テー' => 'tee',
    'チー' => 'chii',
    'トー' => 'too',
    'ツー' => 'tsuu',
    'ワー' => 'waa',
    'ヲー' => 'woo',
    'ヤー' => 'yaa',
    'ヨー' => 'yoo',
    'ユー' => 'yuu',
    'ヵー' => 'kaa',
    'ヶー' => 'kee',
    // old characters
    'ヱー' => 'wee',
    'ヰー' => 'wii',

    // seperate katakana 'n'
    'ンア' => 'n_a',
    'ンエ' => 'n_e',
    'ンイ' => 'n_i',
    'ンオ' => 'n_o',
    'ンウ' => 'n_u',
    'ンヤ' => 'n_ya',
    'ンヨ' => 'n_yo',
    'ンユ' => 'n_yu',

    // 2 character syllables - doubled consonants
    'ッバ' => 'bba',
    'ッベ' => 'bbe',
    'ッビ' => 'bbi',
    'ッボ' => 'bbo',
    'ッブ' => 'bbu',
    'ッパ' => 'ppa',
    'ッペ' => 'ppe',
    'ッピ' => 'ppi',
    'ッポ' => 'ppo',
    'ップ' => 'ppu',
    'ッケ' => 'kke',
    'ッキ' => 'kki',
    'ッコ' => 'kko',
    'ック' => 'kku',
    'ッカ' => 'kka',
    'ッガ' => 'gga',
    'ッゲ' => 'gge',
    'ッギ' => 'ggi',
    'ッゴ' => 'ggo',
    'ッグ' => 'ggu',
    'ッマ' => 'ma',
    'ッメ' => 'me',
    'ッミ' => 'mi',
    'ッモ' => 'mo',
    'ッム' => 'mu',
    'ッナ' => 'nna',
    'ッネ' => 'nne',
    'ッニ' => 'nni',
    'ッノ' => 'nno',
    'ッヌ' => 'nnu',
    'ッラ' => 'rra',
    'ッレ' => 'rre',
    'ッリ' => 'rri',
    'ッロ' => 'rro',
    'ッル' => 'rru',
    'ッサ' => 'ssa',
    'ッセ' => 'sse',
    'ッシ' => 'sshi',
    'ッソ' => 'sso',
    'ッス' => 'ssu',
    'ッザ' => 'zza',
    'ッゼ' => 'zze',
    'ッジ' => 'jji',
    'ッゾ' => 'zzo',
    'ッズ' => 'zzu',
    'ッタ' => 'tta',
    'ッテ' => 'tte',
    'ッチ' => 'cchi',
    'ット' => 'tto',
    'ッツ' => 'ttsu',
    'ッダ' => 'dda',
    'ッデ' => 'dde',
    'ッヂ' => 'ddi',
    'ッド' => 'ddo',
    'ッヅ' => 'ddu',

    // 1 character syllables
    'ア' => 'a',
    'エ' => 'e',
    'イ' => 'i',
    'オ' => 'o',
    'ウ' => 'u',
    'ン' => 'n',
    'ハ' => 'ha',
    'ヘ' => 'he',
    'ヒ' => 'hi',
    'ホ' => 'ho',
    'フ' => 'fu',
    'バ' => 'ba',
    'ベ' => 'be',
    'ビ' => 'bi',
    'ボ' => 'bo',
    'ブ' => 'bu',
    'パ' => 'pa',
    'ペ' => 'pe',
    'ピ' => 'pi',
    'ポ' => 'po',
    'プ' => 'pu',
    'ケ' => 'ke',
    'キ' => 'ki',
    'コ' => 'ko',
    'ク' => 'ku',
    'カ' => 'ka',
    'ガ' => 'ga',
    'ゲ' => 'ge',
    'ギ' => 'gi',
    'ゴ' => 'go',
    'グ' => 'gu',
    'マ' => 'ma',
    'メ' => 'me',
    'ミ' => 'mi',
    'モ' => 'mo',
    'ム' => 'mu',
    'ナ' => 'na',
    'ネ' => 'ne',
    'ニ' => 'ni',
    'ノ' => 'no',
    'ヌ' => 'nu',
    'ラ' => 'ra',
    'レ' => 're',
    'リ' => 'ri',
    'ロ' => 'ro',
    'ル' => 'ru',
    'サ' => 'sa',
    'セ' => 'se',
    'シ' => 'shi',
    'ソ' => 'so',
    'ス' => 'su',
    'ザ' => 'za',
    'ゼ' => 'ze',
    'ジ' => 'ji',
    'ゾ' => 'zo',
    'ズ' => 'zu',
    'タ' => 'ta',
    'テ' => 'te',
    'チ' => 'chi',
    'ト' => 'to',
    'ツ' => 'tsu',
    'ダ' => 'da',
    'デ' => 'de',
    'ヂ' => 'di',
    'ド' => 'do',
    'ヅ' => 'du',
    'ワ' => 'wa',
    'ヲ' => 'wo',
    'ヤ' => 'ya',
    'ヨ' => 'yo',
    'ユ' => 'yu',
    'ヵ' => 'ka',
    'ヶ' => 'ke',
    // old characters
    'ヱ' => 'we',
    'ヰ' => 'wi',

    //  convert what's left (probably only kicks in when something's missing above)
    'ァ' => 'a',
    'ェ' => 'e',
    'ィ' => 'i',
    'ォ' => 'o',
    'ゥ' => 'u',
    'ャ' => 'ya',
    'ョ' => 'yo',
    'ュ' => 'yu',

    // special characters
    '・' => '_',
    '、' => '_',
    'ー' => '_',
    // when used with hiragana (seldom), this character would not be converted otherwise

    // 'ラ'=>'la',
    // 'レ'=>'le',
    // 'リ'=>'li',
    // 'ロ'=>'lo',
    // 'ル'=>'lu',
    // 'チャ'=>'cya',
    // 'チェ'=>'cye',
    // 'チィ'=>'cyi',
    // 'チョ'=>'cyo',
    // 'チュ'=>'cyu',
    // 'デャ'=>'dha',
    // 'デェ'=>'dhe',
    // 'ディ'=>'dhi',
    // 'デョ'=>'dho',
    // 'デュ'=>'dhu',
    // 'リャ'=>'lya',
    // 'リェ'=>'lye',
    // 'リィ'=>'lyi',
    // 'リョ'=>'lyo',
    // 'リュ'=>'lyu',
    // 'テャ'=>'tha',
    // 'テェ'=>'the',
    // 'ティ'=>'thi',
    // 'テョ'=>'tho',
    // 'テュ'=>'thu',
    // 'ファ'=>'fwa',
    // 'フェ'=>'fwe',
    // 'フィ'=>'fwi',
    // 'フォ'=>'fwo',
    // 'フゥ'=>'fwu',
    // 'チャ'=>'tya',
    // 'チェ'=>'tye',
    // 'チィ'=>'tyi',
    // 'チョ'=>'tyo',
    // 'チュ'=>'tyu',
    // 'ジャ'=>'jya',
    // 'ジェ'=>'jye',
    // 'ジィ'=>'jyi',
    // 'ジョ'=>'jyo',
    // 'ジュ'=>'jyu',
    // 'ジャ'=>'zha',
    // 'ジェ'=>'zhe',
    // 'ジィ'=>'zhi',
    // 'ジョ'=>'zho',
    // 'ジュ'=>'zhu',
    // 'ジャ'=>'zya',
    // 'ジェ'=>'zye',
    // 'ジィ'=>'zyi',
    // 'ジョ'=>'zyo',
    // 'ジュ'=>'zyu',
    // 'シャ'=>'sya',
    // 'シェ'=>'sye',
    // 'シィ'=>'syi',
    // 'ショ'=>'syo',
    // 'シュ'=>'syu',
    // 'シ'=>'ci',
    // 'フ'=>'hu',
    // 'シ'=>'si',
    // 'チ'=>'ti',
    // 'ツ'=>'tu',
    // 'イ'=>'yi',
    // 'ヂ'=>'dzi',

    // "Greeklish"
    'Γ' => 'G',
    'Δ' => 'E',
    'Θ' => 'Th',
    'Λ' => 'L',
    'Ξ' => 'X',
    'Π' => 'P',
    'Σ' => 'S',
    'Φ' => 'F',
    'Ψ' => 'Ps',
    'γ' => 'g',
    'δ' => 'e',
    'θ' => 'th',
    'λ' => 'l',
    'ξ' => 'x',
    'π' => 'p',
    'σ' => 's',
    'φ' => 'f',
    'ψ' => 'ps',

    // Thai
    'ก' => 'k',
    'ข' => 'kh',
    'ฃ' => 'kh',
    'ค' => 'kh',
    'ฅ' => 'kh',
    'ฆ' => 'kh',
    'ง' => 'ng',
    'จ' => 'ch',
    'ฉ' => 'ch',
    'ช' => 'ch',
    'ซ' => 's',
    'ฌ' => 'ch',
    'ญ' => 'y',
    'ฎ' => 'd',
    'ฏ' => 't',
    'ฐ' => 'th',
    'ฑ' => 'd',
    'ฒ' => 'th',
    'ณ' => 'n',
    'ด' => 'd',
    'ต' => 't',
    'ถ' => 'th',
    'ท' => 'th',
    'ธ' => 'th',
    'น' => 'n',
    'บ' => 'b',
    'ป' => 'p',
    'ผ' => 'ph',
    'ฝ' => 'f',
    'พ' => 'ph',
    'ฟ' => 'f',
    'ภ' => 'ph',
    'ม' => 'm',
    'ย' => 'y',
    'ร' => 'r',
    'ฤ' => 'rue',
    'ฤๅ' => 'rue',
    'ล' => 'l',
    'ฦ' => 'lue',
    'ฦๅ' => 'lue',
    'ว' => 'w',
    'ศ' => 's',
    'ษ' => 's',
    'ส' => 's',
    'ห' => 'h',
    'ฬ' => 'l',
    'ฮ' => 'h',
    'ะ' => 'a',
    'ั' => 'a',
    'รร' => 'a',
    'า' => 'a',
    'ๅ' => 'a',
    'ำ' => 'am',
    'ํา' => 'am',
    'ิ' => 'i',
    'ี' => 'i',
    'ึ' => 'ue',
    'ี' => 'ue',
    'ุ' => 'u',
    'ู' => 'u',
    'เ' => 'e',
    'แ' => 'ae',
    'โ' => 'o',
    'อ' => 'o',
    'ียะ' => 'ia',
    'ีย' => 'ia',
    'ือะ' => 'uea',
    'ือ' => 'uea',
    'ัวะ' => 'ua',
    'ัว' => 'ua',
    'ใ' => 'ai',
    'ไ' => 'ai',
    'ัย' => 'ai',
    'าย' => 'ai',
    'าว' => 'ao',
    'ุย' => 'ui',
    'อย' => 'oi',
    'ือย' => 'ueai',
    'วย' => 'uai',
    'ิว' => 'io',
    '็ว' => 'eo',
    'ียว' => 'iao',
    '่' => '',
    '้' => '',
    '๊' => '',
    '๋' => '',
    '็' => '',
    '์' => '',
    '๎' => '',
    'ํ' => '',
    'ฺ' => '',
    'ๆ' => '2',
    '๏' => 'o',
    'ฯ' => '-',
    '๚' => '-',
    '๛' => '-',
    '๐' => '0',
    '๑' => '1',
    '๒' => '2',
    '๓' => '3',
    '๔' => '4',
    '๕' => '5',
    '๖' => '6',
    '๗' => '7',
    '๘' => '8',
    '๙' => '9',

    // Korean
    'ㄱ' => 'k', 'ㅋ' => 'kh',
    'ㄲ' => 'kk',
    'ㄷ' => 't',
    'ㅌ' => 'th',
    'ㄸ' => 'tt',
    'ㅂ' => 'p',
    'ㅍ' => 'ph',
    'ㅃ' => 'pp',
    'ㅈ' => 'c',
    'ㅊ' => 'ch',
    'ㅉ' => 'cc',
    'ㅅ' => 's',
    'ㅆ' => 'ss',
    'ㅎ' => 'h',
    'ㅇ' => 'ng',
    'ㄴ' => 'n',
    'ㄹ' => 'l',
    'ㅁ' => 'm',
    'ㅏ' => 'a',
    'ㅓ' => 'e',
    'ㅗ' => 'o',
    'ㅜ' => 'wu',
    'ㅡ' => 'u',
    'ㅣ' => 'i',
    'ㅐ' => 'ay',
    'ㅔ' => 'ey',
    'ㅚ' => 'oy',
    'ㅘ' => 'wa',
    'ㅝ' => 'we',
    'ㅟ' => 'wi',
    'ㅙ' => 'way',
    'ㅞ' => 'wey',
    'ㅢ' => 'uy',
    'ㅑ' => 'ya',
    'ㅕ' => 'ye',
    'ㅛ' => 'oy',
    'ㅠ' => 'yu',
    'ㅒ' => 'yay',
    'ㅖ' => 'yey',
];
